ISTQB-CTFL Exam Practice Test Instant Access

Question 1

In which one of the following test techniques are test cases derived from the analysis of the software architecture?

ABlack-box test techniques.

BExperience-based test techniques.

CChecklist-based test techniques.

DWhite-box test techniques.

Answer : D

White-box test techniques are test design techniques where the test cases are derived from the internal structure of the software, including its architecture, code, and logical flow. These techniques involve the tester having knowledge of the internal workings of the software to create test cases that ensure all possible paths and conditions are tested. This is in contrast to black-box test techniques, which focus on input-output behavior without considering the internal structure. Reference: ISTQB CTFL Syllabus V4.0, Section 4.3

Question 2

Which one of the following statements correctly describes the term 'debugging'?

AThere is no difference between debugging and testing.

BDebugging is a confirmation activity that checks whether fixes resolved defects.

CDebugging is the development activity that finds, analyses and fixes defects.

DDebugging is of no relevance in Agile development.

Answer : C

Debugging is the development activity that finds, analyses and fixes defects. Unlike testing, which aims to identify defects in the software, debugging is the process that developers use to locate and correct the errors found during testing. This involves diagnosing the root causes of these defects and making necessary code changes to resolve them. Debugging is a critical part of the development cycle and ensures that the software functions correctly after defects are fixed.

Question 3

The following state transition diagram describes the functionality involved in a system using fingerprint and password authentication to log onto a system.

How many distinct states of the system are visible in the above diagram?

Answer : C

The state transition diagram provided shows three distinct states:

Waiting for fingerprint

Waiting for PIN

Valid PIN/ask menu selection

Each state represents a different stage in the system's operation, with transitions based on user actions and system responses.

Question 4

Which of the following best describes the way in which statement coverage is measured?

AMeasured as the number of decision outcomes executed by the tests, divided by the total number of decision outcomes in the test object.

BIt is not possible to accurately measure statement coverage.

CMeasured as the number of statements executed by the tests, divided by the total number of executable statements in the code.

DMeasured as the number of lines of code executed by the test, divided by the total number of lines of code in the test object.

Answer : C

Statement coverage is a metric used in white-box testing that measures the percentage of executable statements in the code that have been executed by the test cases. It is calculated as the number of statements executed by the tests divided by the total number of executable statements in the code, providing an indication of how much of the code has been tested.

Question 5

Which of the following statements is incorrect regarding the involvement of testers in the software development lifecycle (SDLC)?

ATesters should contribute to all activities in the SDLC and participate in design discussions.

BTesters should be involved from the beginning of the SDLC to increase understanding of design decisions and detect defects early.

CTesters should only be involved during the testing phase.

DTesters' involvement is essential; developers find it difficult to be objective.

Answer : C

Involving testers only during the testing phase is incorrect as per the ISTQB CTFL syllabus. Effective involvement of testers is crucial throughout the entire software development lifecycle (SDLC). This includes early stages such as requirement analysis and design, which allows testers to understand the design decisions and detect defects early. Early involvement helps in better understanding the project and ensures that quality is built into the product from the beginning. Furthermore, the ISTQB syllabus emphasizes the importance of testers contributing to all activities in the SDLC, including design discussions, to enhance defect detection and prevention.

Question 6

During iteration planning, a scrum team uses an estimation technique called planning poker to estimate the effort required to deliver a critical user story. In advance of the estimation session, the team agreed on some ground rules to limit the number of poker rounds and save time.

The team agreed on the following:

1. They will use the following progression for estimation: Extra-small, Small, Medium, Large, Extra-large, and Extra-extra-large.

2. If estimation values differ significantly, the highest score will be used for estimation purposes.

The result of the first round of planning poker:

Team Member Estimation

Business Large

Development Extra-extra-large

Testing Extra-extra-large

Which of the following options best represent the team's next actions?

AThe fact that all estimations are high indicate that the user story is not well understood or should be broken down into multiple smaller stories.

BThe pre-agreed rules state that the highest score should be used for estimation, resulting in the user story being categorised as Extra-extra-large.

CSince the business representative is likely to have the most informed view of the requirement, the user story is categorised as a Large.

Dthe team discusses the differences in the estimates and repeats the poker round until an agreemet is reached.

Answer : D

In a planning poker session, if there is a significant difference in the estimations, it indicates that there may be misunderstandings or different perspectives on the complexity of the user story. According to the agile principles, the team should discuss these differences to reach a common understanding. The goal is to ensure that all team members have a shared understanding of the user story's scope and complexity before finalizing the estimate.

Question 7

During which main group of test activity are the following tasks performed?

* Checking test results and logs against specified coverage criteria.

* Assessing the level of component or system quality based on test results and logs.

* Determining whether more tests are needed.

Select the correct answer:

ATest planning.

BTest analysis.

CTest design.

DTest monitoring and control.

Answer : D

The activities of checking test results and logs against specified coverage criteria, assessing the level of component or system quality based on test results and logs, and determining whether more tests are needed fall under the category of test monitoring and control. This phase involves ongoing assessment and adjustment of the test activities to ensure they meet the test objectives and quality goals.

ISTQB-CTFL ISTQB Certified Tester Foundation Level v4.0 Exam Practice Test